Carbureter.



No. 874,822. n -PATBNTBD M0224, 1907.- Hf D.BI'RD. l c xBBURETER; APrLIoATIoN FILED 12113.14, 1907.

Il 'x WJTNESSES: Y 4 l ,L cnet' E @Mw @A /fw/ ATTORNEYS.

30 `-all 'as hereinafter more fully-described, refer# l..ence b einghdto theaccompanyng draw-` UNITED sTATEs PATENT HARRY D. BAIRD, or DETROIT, MICHIGAN, AssIGNoR To SAINT or DETROIT,- MICHIGAN, A CORPORATION or MICHIGAN."

CARBURETER. i

.-Specicatbn of Letterslatent.

' ngc; 24,1697.

Application filed February 14. 1907. Serial No. 357323.

To all whom it may concern:

Be it known that I, HARRY D. BAIRD, a citizen of the United States of America, re siding at Detroit, inthe county of Wayne and State of Michigan, have invented certain new and useful Improvements in Carbureters, of which the following is a specification,

f reference being had therem to the accompanying drawings.

the charges through the inlet port into the cylinder. A. further object of the invention'is -to .so

construct. and 'arrange the devicethat it upon a p forms a sage leading to the intake port'from the crank chamber, said passage forming the mixing chamber for the air and 'gasolene' Itis also an object of the invention to re-- vent, insuch an arrangement, the gaso ene lfrom oing--into-'the crank chamber, and'to provi e certain other new anduseful features,

Y i e Irisa-transverse vertical' section ofv im'.engine .With a device embodying the in.

vention'attachedthereto; Fig.v 2, is `afront or outside elevation of the carbureting de-v vice, -det'aelied yand Fig. is 'an' elevation 'of the same showing theA inner s'ide thereof.

A'In'the' drawingfis 'shown-,an Ordinary ver-` tical cylinder engine of thebase compression rpres'enting the cylindelgprovided.

type! 1 with an etport -2 at' One'sid'eand an ex,

haust'- ort 3 atthe oppositeside, 4 the piston vin sai cylinderg the airtight crank ca se in .which is the 'crank connectedto*:the piston by. the connecting 'rodi 17', 'andff 8:. iisf'af I ass'age leading from Athe crank icasea't one 'si' e -o'fthe cylinder, tto". and a short distance l'beyond the inletpo'rt. One side- Of the passageB lis left open andthis opensideis closed by ade- .tachable?y plate 9 secured' in place iby bolts.

A bossil'O on the .inner side of saidv plate pro- -jectsinto the vupiper end of tl'le'passage and 55. this boss is bore vertically'inward from its rovide a very simple,-

Ilart of the engine, it being mounted ate which forms one side O f the pasprovided therefor-- in a ca upperend tolform a chambetfll therein having a valve seat `12l titsbwerend'from which seat a discharge 1 3 leadslout through the side 'of the boss.

Extending horizontally Outward. from the outer side of the plate o posite the boseis a stud 14 having an axialore leading into the chamber 11 and in this bore which isf screwthreaded and formed with a valveseat near lits inner end, is .a needle valve 15 and gasolene supply pipe 16"communicates Withsaid bore through a lateral passagein the. stud. A stuiiing box 1 7 is provided `on the outer end of the stud to 'levant-leakage around the stem of the nee le valve which extends outward therethrough and is provided with a hand wheel' on its outer end by means of, which said stem may --be turned to regulate the iow of gasolene. In the chamber 11j is a: valve18 en agingthe seat l2 to prevent the' `flow of gaso ene fromfsaidchamber and said 4,valve isprovided with an upwardly extending stem guided at its upper end in a socket 19 screwedinto and closing the upperen- -of s aidfchamber.

:The valve-is normally held toits seat. by a .coiled -spring 20-sleeved on the'stein between it andthe said cap. and a stem 21 on the lower side ot the valve', extends downward through the lowe'rl end'of the boss 310 and .projects theref'rornsome distance. 'i

In the plate 9 directly` below the boss thereon is' an opening22 which. is closed by an inwar y swinging valve 23. pivoted to the plate at 2 4 by an`upwardly extending arm thereon, and. from Saidpivot anfarm-f25 ex'-M tends horizontall inward ,beneath the lower projecting engly `o the valve t stem 21- s0- that l.Whenzsaid air valve 23 is Opened 'by the suction strokeo*l the engine said arm 25 will eh'- gage the st'em4 and raise the gasolene inlet valve fromits seat-to'admit' a charge of gasolene at the same time. A facing 26 of leather or .other suitable material is provided on the air valve so that it will close the opening tightly-and in the axis of the valve is an 'outward-ly extending earftojwhich is attached one-end of a coiled spring- 27 to normally hold lthe valve to its seat, the oppositeend of said spring being secured to anarm 28 projecting 4Outward from the plate.

To catch the gasolene as it is admitted by the inlet `valve 18 andhold it insuspension to prevent its passing downward with the ingoing airinto the crank chamber, the boss 10 .tue down stroke of the 'formed 0i wire4 gauze orother snit is inelosed Within a cage ehe terial seoureda-t its edges to the pi t distance from the sides of the hose and a tending across beneath the lower nd th.

The vaouuinin the eranleeese ogm-sen hv the np-strole of the pistoiivfill open the air velve 23 end the inward swinging el" said valve will bring the arm thereon in oon- -teot with the stein of the gasolene inlet pension in the path oi' the ingoing air Where it Wili he readily taken up and also divides it into. ine .globules to more thoroughly earhuret the air, and by arranging the gasoinlet valves end'the air valve upon one plate which is readily removable, the parts ere rea-de very accessible for cleaning or repair wing thus fully dese ibed my invention, i eiaimis :--4

.il 'The combination with` an engine ot the "eoonipression type' homingy a passage handing from its base to its inlet port, oi valve for admitting eharges of gasolene to said passage, a valve for admitting air op era'ted .by the suction stroke ot the engine piston and the movement oi: which valve opens the gasolene valve, and a gauze cage Within the passage to reeeive and hold the dene through which the air on its y to the inlet port.

The combination with engine of the .heseeonipressien type haring a passage leerling from its hase to its inlet port, avvalve 'operated ley stroke of the engine piston 'for admitting air to said passage, a'valve for` sage havn the air a' .C

arge-s oi' gasolene to seid pas-Y stenz. adaptedto he engaged hy to open the gasolene valve, and aiiiinous cage within the passa-ge surng the gasolene .nozzle to receive 3, The combina-tion with an engine oi' the base-compression type having a passage leading from its'hase to its inlet ort and one sido of which passage is open, o a plate to close said opening, gasolene "to said passage carried by said plate, and a-valve carried by said plateto operate by the stroke of the engine piston for admitting air to the passage and operating to actnate said means.

4. vThe combination with an engine of the means for admitting eh arges oi.

e? eea liaise to its inlet port, env open side, of a plate isfige formed trol soie ated h v the snetio ton for admitting :iii sage and opeeating the gasolene valve. i

5. The combination with :in engine of the bese-compression type provided with apessage leadingi'roin oase to its inlet port, said passage having en open side, of a plate to close saidl open side formed with an opening and with a gasolenepassage, a valve to close the opening in the plate opera-ted b v the stroke of the engine piston to odrnit air'to said engine passage, a valve to control the gasolene passage, and a stein on said valve operated by the opening ofthe air valve.

G. The. combination with an engine oi the e providedv with a pas* hase-eom'bression t f e ro'vded with e assage leading from its hase to its inlet port,

said passage having an open sida-of a. platey to elose said open side having e gasolene 1nlet, e valve to lcontrol the f lisolene inlet, o. valve pivotallv attached to .te adapted to he opened by the suction in: of the engine piston, spring to holds valve to its seat, and an ami on the'said'velve adapted to operate the valve. controlling the gasolene inlet.

'7. The combination with an en ine of the hase-compression tjwee 'provided with a pas sage leading from its hase to its inlet port,

seid .passage having en open side, of plate to close said open side having an opening, valve to close said 'opening 'adapted to he opened hv the Asuction stroke oi the engine piston, a'lioss on the plate formed with a eheniher having e valve seet in its lower end and a discharge passage "leading from said seat, anda valve on the' velve seat having asteni extending through the boss and adapt ed to he engaged and operated by the other valve.

S. The combination with an engine of the hase-compression type provided with a passage ler-.ding from its haseto its inlet port,

seid pessege having an open'side, of a plateA -wlxich air will pass freely.

9. The eoniliiimtion with an engine of the l)ase-eoinpressioxi type provided with a passage having an. open side lending from the engine crank-(caso to its inlet port, of :L plato to izlose said open side formed with :in opening, an air valve said opening and :adapted to be operated by :lll

pivoted to the plate to close l the suction stroke of the en 'in e piston, a spring to normally .hold the va ve to its seat,

an inwardly projecting boss on the plate.

formed with a chamber having a Valve seat in its lower end and adischarge passage leading from said seat, a Valve engaging said seat,

- a stem on the Valve extending downward opposite the boss formed with an axial bore o ening intothe chamber in the boss, a neede Valve in said bore, and a chamber formed of Wire gauze inelosing the boss. In testimony whereof I aflix my signature 15 in presence of two witnesses. Y

HARRY D. BAIRD.

Witnesses:

. HARRY M. LIGK, t

OTTO F. BARTHEL. 

